Home / 129,785.38-194,584.60-79,762.14

Finding the Fourth Proportional to 129,785.38, 194,584.60 and 79,762.14

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Solution

The fourth proportional to 129,785.38, 194,584.60 and 79,762.14 is: 119,585.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,785.38 : 194,584.60 = 79,762.14 : x
  2. Step 2: Convert to fraction form
    129,785.38/194,584.60 = 79,762.14/x
  3. Step 3: Cross multiply
    129,785.38x = 194,584.60 × 79,762.14
  4. Step 4: Simplify right side
    129,785.38x = 15,520,484,107.04
  5. Step 5: Solve for x
    x = 15,520,484,107.04/129,785.38
  6. Step 6: Final answer
    x = 119,585.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.